I know one, but my victim would have to be oiled up, and bare chested. And then, Maybe.I know of at least 5 "Pressure Point" attacks which are demonstrable and repeatable and were known of and taught even in western boxing all the way up to the 1930's or so. One of them they taught was real but they admitted was impossible to hit on demand and therefore they taught should be ignored, two of them are now illegal, one of them only works when both grappling and facial contact are allowed (no, it's not the eyes), and one of them is darned hard to get when both wearing gloves and the opponent has a "guard."
But they are "real" and do "work" with three of them causing instantaneous incapacitation.
Peace favor your sword,
Kirk